the beast within you that makes you laugh at completely inappropriate times, like a funeral, a breakup, when someone tells you of an ailment, or a dramatic movie that matters to the person you're watching it with
i was at my girlfriend's grandpa's funeral, and my roflmonster came out at the worst time possible!! i couldn't control it at all, but i didn't care for some reason
That booty could federa man from three feet away, then it did, it was redlobsterous.
A close-up of Janet Jackson's nipple hit the online so fast, it was redlobsterous.
Coach preceeded to tell the boys to leave the gym, but his voice was so muffled, that it was redlobsterous.
One time someone fell on my leg and created a redlobsterous bruise that protruded my pants with curvature.
n.: One who uses rofl, lmao, rotflmao, lol, etc. wayyyyy to much.
jim: wanna hear a joke, bob?
bob: sure, jim.
jim: two peanuts were walking down the street.
bob: k..
jim: ..one was "assaulted"..
bob: ROFL! LOL! LMAO! ROTFLMAO!!! BAHAHA!
jim: dude you're such a roflmonster..
A creature of great destruction that assits in the pwning of no0bs. Also likes to fly roflcopters while eating awesomesauce. Likes to wear lolerskates.